Circuit-closer for combination-locks and burglar-alarms.



M. D. MORTON.

v CIRCUIT CLOSER FOR COMBINATION LOCKS AND BURGLAR ALARMS.

PPLICTION FILED )UNE 6, |916: 1,249,992. Patented Deu 11, 1917.

2 SHEETS-SHEET x.

Il f ma;

IVI. D. MIITON.

CIRCUIT CLOSER FR SOMBINAI'ION LOCKS AND BUBGLAR ALARMS.

APPLICATION FILED IUNEG |916.`

Patented Dec. 11', 1917.

2 SHEETS-SHEET 2.

MEX/121100 31a/pauw@ on on MELVIN D. MonToN, or GAULEY MILLS, WESTVIRGINIA.

CIRCUIT-CLOSER FOR COMBINATION-LOCKS AND BURGLAR-ALARMS..

Specification of Letters Patent.

i Patented Dec. 11, 1917.

Application filed .Tune 6, 1916. SerialNo. 101,342.

To all whom it may concern.

Be it known that I, MELVIN D. MonToN, a citizen of the United States.residing at Gauley Mills, in the county of Webster and State of WestVirginia, have invented certain new and useful Improvements in Circuit-Closers for Combination-Locks and Burglar-Alarms; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

This invention relates to a combination lock and burglar alarm and moreparticularly to a device adapted to be attached or made integral withany type of lock employing a locking bolt, whereby it will be necessaryto operate the combination before the key to the lock can be insertedwithin the lock.

An object of this invention is to provide a cylindrical barrel attachedor made integral to the front wall of the casing of a lock and coveringthe keyhole therein and having a plurality of sector plates pivotallymounted in thebarrel and in alinement with the vkeyhole of the lock,whereby said plates will have to be moved in such a manner to allow akey to be inserted through the barrel into the lock, for operating thelock mechanism. f

another object of this invention is to provide a pair of blocks, eachone of which is 'pivoted to the barrel upon each side of the sectorplates, so that when any one of the sector plates is moved in a wrong orincorrect direction, the blocks will be swung upon their pivots andclose an electric circuit to an alarm, notifying that the lock is beingtampered with by an unauthorized person who is not familiar with thecombination.

A further object of this invention is the provision of a combinationlock and burglar alarm of the above stated character which shall besimple, durable and efficient, and which may be manufactured and soldVat a comparatively low cost.

Vith these and other objects in view as will become more apparent as thedescription proceeds, the invention consists in certain novel featuresof construction, combination and arrangement of parts as will behereinafter morev fully described and claimed.

For a complete understanding of myinvention, reference is to be had tothe following description and accompanying drawings, 1n which Y y Figure1 is a front elevation, partly in Section of a combination lock and aburglar alarm, constructed in accordance with my invention,

Fig. 2 is a longitudinal sectional View, taken on the line 2 2 of Fig.l, illustrating the means of connecting the sector plates with the lock,i l

Fig. 3 is a similar view taken on the line 2 2 of Fig. l, illustrating akey passing through the sector plates,

Fig. et is aveprtical sectional view illustrating a means `attached tothe pivotedlock and barrel for closing an electric circuit to an alarm,and r Fig. 5 is a detail view illustrating a portion of a lock.

Referring in detail to the drawings` the numeral l indicates acylindrical barrel, which may be secured or made integral to a lockcasing 2, that may be of anv construction or formation, but to betterillustrate my invention I have shown a lock consisting of a slidingbolt-3 which is adapted to be normally held into engagement with akeeper by means of a coil spring 4 positioned botween the inner end ofthe sliding bolt 3.

and the wall of the casing 2. The front wall of the casing 2 is providedwith the ordinary keyhole plate 5 having formed thereon a lug 6. The lugG is adapted to engage a notch 7 in the sliding bolt 3 for drawing thesliding bolt 8 within the casing to freethe bolt from the keeper (notshown), the keyhole plate 5 being operated by a key which will behereinafter more fully described. a

The cylindrical barrel 1 is provided with a front wall S which isprovided with an opening' 9, the opening 9 beingpclosedby a circularplate, l0 positioned upon the inner face of the front wall 8 andheldvthereto by means of an angular' ring 11 bolted or t rel 1 andhasmounted ,thereon sector plates 14, 15, 16, 17 and 18, each of which havea downwardly depending arm 19 that 1s secured to coil springs 20 bymeans of eye-l bolts 21. The coil springs 20 are secured to the barrel 1by suitable eye-bolts 22, providing means for normally holding thesector plates vertically within the cylindrical barrel 1. The sectorplates are provided with slots 23 and 24, which slots are arrangedwithin the curved ends of the sector plates and adjacent the straightedges thereof. Formed on each of the sector plates are upwardlyextending lugs 25, having operating rods 26 pivotally secured thereto,the enfls of which are bent at right angles to form hooks 27.

A pair of blocks 27 and 28 are provided with extensions 29 at each endthereof and are journaled in the front wall of the easing 2 of the lockand the front wall 8 of the cylindrical barrel and arranged upon eachside of the sector plates. Each of the blocks 27 and 28 is provided witha plurality ot notches'SO and being divided by wires 31. The operatingrod 26 which is pivot-ally secured to the sector plates 111 ispositioned within one of the notches 30 of the block 28 and the hookedend 27" engages the wire 31, to provide a connection between the sectorplate 14; and the block 28, which will swing the block 28 upon its pivotwhen 'the sector plate 14: is moved to the lett. The operating rod 26which is secured to the sector plate 15 extends into one ot' the notchesof the block 27 and is provided with its hooked end 27 in an engagementwith the wire 81, 'to provide a connection between the sector plate 15and the block 27, which will cause said block 27 to swing upon its pivotwhen the sector plate'15 is moved to the right. The operating rod 26which is pivotally secured to the sector plate 16 extends into one ofthe notches 30 of the block 28 and its hooked end 27 engages the wire31, to provide a connection between the sector plate 16 and the block28, which will cause said block 28 to swing upon its pvot and the sectorplatelG is moved to the left. The operating rod 26 which is connected tothe sector plate 17 extends into one of the notches 30 of the block 27and its hooked n end 27 engages the wire 31 and provides a connectionbetween the sectorplate 17 and the block 27 which will cause said block27 to swing upon its pivot when the sector plate 17 is moved to theright. rlhe operating rod 26 which is pivotally secured to the sectorplate 18 engages one of the notches 30 of the block 28 and its hookedend 27 engages the wire 31 and provides a connection between the sectorplate 18 and the block 28, which will cause the block 28 t@ swing upon`its pivot when the sector plate 18 is moved to thelett. The blocks 27and 28 are normally held in a substan tially vertical position asillustrated in Fig. 1 by means of coil springs 32 and 33, which aresecured to the cylindrical barrel 1. The slot 23 in the sector plate 14,the slot 24C in the sector plate 15, the slot in the sector plate 16,the slot 24: in the sector plate 17 and the slot 23 in the sector plate18 are each provided with communicating recesses 34, for receiving aportion ot the key, which will be hereinafter more fully described.

The key 35 consists ot' a shank having a plurality of relatively spacedbits 36 formed thereon. The key is inserted through the opening 12 thatis adjacent one edge ot the circular plate 10 and turningvl the key, theplate 10 is rotated and the key moves in the direction'ot the slot 23and is then inserted far enough to position its -first bit in the slot23 of the sector plate 14, after which the key .is moved to the right toaline the slot 23 of the sector plate 111 with the slot 24 ot' thesector plate 15, then the first bit is shoved into the slot 211 of thesector plate 15, permitting the second bit to occupy the slot 23 o thesector plate 1-1. vVhen the sector plate 14.` is thus swung, theoperating rod 26 is pushed in the direction of the block 28 and theoperating rod 26 slides Vtreely through the notch 30 of the block 28 anddoes not swing said block 28 upon its pivot. After the key has beeninserted into the slot 24, of the sector plate 15, the key is moved tothe left, causing the sector plates let and 15 to move in acorrespondin!T direction by the tirst and second bits, and then thefirst bit is pushed into the slot 28 ot the sector plate 16. Theoperating rod 26 which is connected with the sector plate 15 and to theblock 27 will allow said sector plate to move to the lett withoutmoving` said block 27 upon its pivot. After the keyr has been insertedthrough the slot 23 in the sector plate 16, the key is moved then to theright and pushed through the slot 24- in the sector plate 17. The key isthen again moved to the left so that it may be inserted in the slot 23in the sector plate 18. lVhen the key has been successfully passedthrough the slots of the various sector plates, it then may be pushedinto the key plate 5 oi the lock 2 so that said key plate 5 may berotated to withdraw the bolt 3 from the keeper (not shown). After thekey has been inserted in the key plate 5, the bits thereof arepositioned in the communicating recesses 34 of the respective'sectorplates, whereby the key may be rotated to operate the, bolt 3 withoutmoving or influencing the sector plates. The bits of the key when in therecesses of the sector plates will permit only slight movement of saidsector plates, which is not sufficient to actuate the blocks.

Each of the blocks 27 and 28 is provided at one of their ends with acontact pole 37 which is insulated from the respective blocks to whichit is secured and poles 39 are-secured tothe front Wall 8 of the barrel1 adjacent each block 27 and 28 and are provided with their free endsbent to form a catch for engaging the pole' 37 carried by the blocks 27and 28 when said blocks are rocked upon their pivot to close an electriccircuit to conductors 40 and 41 which are connected respectivelyto thepole 37 and the pole 89 and are connected with a suitable electriccircuit (not shown) for sounding an alarm when the blocks 27 and 28 areswung upon their pivots.

If a person not familiar with the correct combination of this lock,endeavors to open the lock by inserting the key into the barrel l andthrough the sector plates, he is liable to get the key in the wrongnotch'of the respective sector plates, and if so and by moving the keyto bring it in line with one of the notches to the next adjacent sectorplate will cause the operating rod 26 which is pivoted to the'sectorplate which thev key is passed through the incorrect notch to pull uponthe respective block to which it is secured and swing it upon its pivotbringing the contact pole 37 carried thereby in contact with `thecontact pole 39 adjacent thereto and close the circuit to an electricalarm, which will immediately notify that the lock is bein tamperedwith. If the person is successful in getting the key through the propernotch in the first sector plate, he is liable to become confused wheninserting the key through the next adjacent sector plate and if so andthe key is inserted in the next adjacent sector plate, the secondmentioned sector plate will move the respective block to which it isconnected by the operating rod 26 and swing said block upon its pivotand close the circuit to the pole 37 carried by said block and the pole39 adjacent thereto and sound the alarm.

While I have shown and described the preferred embodiment of myinvention, it will be understood that minor changes in construction,combination and arrangement of parts may be made without departing fromthe spirit and scope of the invention as claimed. i

Having thus described my invention, what I claim is l. A combinationlock and burglar alarm comprising a lock casing, a spring pressed boltslidably mounted in said casing, a barrel on said casing and closing thekey hole thereto, combination means mounted in said barrel and adaptedto be correctly operated beforea key can be inserted within the lockcasing. and means operatively connected with the combination means toclose a circuit adapted to sound an alarm when the combination means isincorrectly operated.

2. A combination lock and burglar alarm comprising a, lock casing, a.spring pressed bolt slidably mounted in said casing, a barrel secured onsaid casing and surrounding the key hole thereof, a front wall securedto said barrel and provided with an opening therein, a circular plateclosing lthe opening and provided with a key hole therein, combinationmeans mounted in said barrel and adapted to be correctly operated beforea key can be inserted within the lock casing, and means operativelyconnected with the combination means to close a circuit adapted to soundan alarm when the combination means is incorrectly operated.

3. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured onsaid casing and surrounding the key hole thereof, a front Wall securedto the barrel and provided with a circular opening therein, a circularplate slidably mounted on the front wall of the barrel and provided witha keyhole therein, a combination means mounted in said barrel andadapted to be correctly operated before the key can be inserted withinthe lock casing, and means operatively connected with the combinationmeans to close a circuit adapted to sound an alarm when the combinationmeans is incorrectly operated.

4. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a cylindricalbarrel secured to the casing and surrounding theI keyhole therein, afront wall secured to the barrel and provided with a 100 circularopening therein, Aan annular ring detachably secured to the front walland surrounding the opening therein to provide an annular recess, acircular plate rotatably mounted within the recess and provided 105 witha keyhole therein, combination means mounted in said barrel and adaptedto be correctly operated before a key can be in# serted within the lockcasing, and means to close a circuit adapted to sound an alarm 110 whenthe combination means is incorrectly operated.

5. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a bar- 115 relsecured to said casing and surrounding the keyhole thereof, sectorplates journaled 1n said barrel and adapted to be correctly operated bya key before said key can be inserted within the keyhole of the casing,and 120 means to close a circuit adapted to sound plates are incorwhichis adapted to receive a key to cor` rectly operate the sector plates sothat said key may be inserted Within the keyhole of thelock casing` andmeans to close a circuit adapted to sound an alarm when the sectorplates are incorrectly operated.

7. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in the casing, a cylindrical barrelsecured to said casing and sur rounding the keyhole thereof, a pluralityof sector plates pivotally mounted in said barrel and each provided withoppositely disposed slots, one of said slots of each sector plateadapted to receive a key to correctly aline the sector plates beforesaid key can be inserted into the keyhole of the lock casing, meanssecured to each of the sector plates for holding said sector plates in avertical position within the barrel, and means to close a circuitadapted to sound an alarm Whenrthe sector plates are incorrectlyoperated.

8. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing and surrounding the keyhole thereof, a plurality of sectorplates journaled in said casing and provided with slots therein, an armformed on each of the sector plates, springs connected to the arm and tothe barrel for holding said sector plates in a vertical position, andmeans to close a circuit adapted to sound an alarm when the sectorplates are incorrectly operated. l

9. A combination lock and burglar alarm comprising a lock casingprovided with a keyhole therein, a spring pressed bolt slidably mountedin said casing, a barrel secured to said casing and surrounding thekeyhole thereof, a longitudinally extending shaft journaled in thebarrel and lock casing, sector plates secured to said shaft and providedwith slots therein, arms formed on saidv sector plates and dependingdown- Wardly therefrom, springs secured to the arms and to the barrelfor holding said sector plates in a vertical position Within the barrel,and means to close a circuit adapted to sound an alarm when the sectorplates are incorrectly operated.

10. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing, sector plates journaled in said barrel, means secured tothe sector plates and to the barrel for holding said sector plates inavertical position ivithin `the barrel, blocks pivotally secured With thebarrel,electrical means connected with the blocks, and means connectedto the sector plates and to the block for swinging said blocks upontheir pivots when the sector plates. are incorrectly operated.

.11. IA combination lock and burglar alarm comprising aylock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing, sector plates j ournaled in said barrel and in horizontalalinement with each other, means connected to the sector plates and tothe barrel for holding said sector plates against accidental movement,yspring held blocks pivotally secured Within the barrel, electriccontacts connected With the blocks and barrel, and means connected tothe lsector plates and to the block for swinging said block upon theirpivots When the sector plates are incorrectly operated.

12. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing, sector plates journaled in said barrel, means for holding`said sector plates in horizontal alinement with each other, said sectorplates provided with slots therein, an ear formed on each of the sectorplates, spring held blocks pivoted upon each side of the sector plates,electric contacts connected with the blocks and barrel, and meansconnected to the ear and to the blocks for swinging said blocks upontheir pivots When the sector plates are incorrectly operated.

13. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing, sector plates jonrnale'd in said barrel, means secured toeach of the sector plates for normally holding them in horizontalalinement with each other, said sector plates provided with slotstherein, spring held blocks pivotally mounted Within the barrel andpositioned upon each side of the sector plates, electric contactsconnected With the blocks and barrel, operating rods connected to eachof the sector plates, one of said operating rods connected With one ofthe blocks and the other operating rod connected with the other block toswing either of the blocks to sound an electric alarm when any of thesector plates are incorrectly operated.

14. A combination lock and burglar alarm comprising a lock casing, aspring pressed bolt slidably mounted in said casing, a barrel secured tosaid casing,- sector plates journaled in said casing, means for holdingsaid sector plates in horizontal alinement with each other, spring heldblocks pivotally secured Within the casing and positioned upon each sideof the sector plates, contact poles carried by the blocks, contact polescarried by the barrel and provided with their ends bent to form catches,means forconnecting the poles in circuit t'vith an electric alarm, saidblocks provided with a plurality of notches therein, Wires intersectingthe www ef Seid blade, and rods @attested to the sector plates andextending into the In testimony whereof I aflx my signature notchesofbthe blocks 1and provided with their in presence of two witnesses.free ends ent at rig 1t zmUles to enmw'e the Y f Wires Within thenotehesaoi' the bloks to MELVHN D' MORFON' 5 swing said blocks to soundan electric alarm Vtnesses:

when any of the sector plates are incorrectly L. O. HILL, operated. E.E. HARDWAY.

Copies o1 this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, D. C."

